Json_encode How to prevent Chinese characters from escaping into Unicode

As we all know, Json_encode usually escapes the characters in JSON into Unicode, but that's not necessarily what we want. Sometimes we need to get a JSON string in the form of a Chinese character, such as a JSON string that needs to be GBK encoded (as long as the character string is transcoded). Is there any good way?

PHP officially hears this demand and offers a reliable solution: Json_unescaped_unicode. This parameter ensures that Json_encode no longer converts Chinese characters to Unicode.

Does that seem to solve it? When we happily use this parameter, we find that there is no egg to use. In a closer look, this parameter is only supported by PHP after 5.4. What about the earlier PHP?

The community provides a solution:

1 function my_json_encode ($arr) {2//convmap since 0x80 char codes so it Takes all multibyte codes (above ASCII 127). So such characters is being "hidden" from normal json_encoding3array_walk_recursive($arr  function (&$item$keyif (is_string($item  $item = mb_encode_numericentity ($itemarray (0x80, 0xFFFF, 0, 0xFFFF), ' UTF-8 ' ); }); 4 return mb_decode_numericentity (Json_encode ($arrarray (0x80, 0xFFFF, 0, 0xFFFF), ' UTF-8 '); 5 }

However, this method is only supported in 5.3, since 5.2 does not support anonymous functions. As for the solution? Define the anonymous function as you please.

The above describes how Json_encode prevent Chinese characters from escaping into Unicode, including the contents of the content, I hope that the PHP tutorial interested in a friend helpful.

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